<!doctype html>
<html>
<head>
  <title>CodeMirror 2: Overlay Parser Demo</title>
  <link rel="stylesheet" href="../lib/codemirror.css">
  <script src="../lib/codemirror.js"></script>
  <script src="../lib/overlay.js"></script>
  <link rel="stylesheet" href="../theme/default.css">
  <script src="../mode/xml/xml.js"></script>
  <link rel="stylesheet" href="../css/docs.css">

  <style type="text/css">
    .CodeMirror {
      border: 1px solid black;
    }

    .cm-mustache {
      color: #0ca;
    }
  </style>
</head>
<body>
<h1>CodeMirror 2: Overlay Parser Demo</h1>

<form><textarea id="code" name="code">
  <html>
  <body>
  <h1>{{title}}</h1>

  <p>These are links to {{things}}:</p>
  <ul>{{#links}}
    <li><a href="{{url}}">{{text}}</a></li>
    {{/links}}
  </ul>
  </body>
  </html>
</textarea></form>

<script>
  CodeMirror.defineMode("mustache", function (config, parserConfig) {
    var mustacheOverlay = {
      token:function (stream, state) {
        if (stream.match("{{")) {
          while ((ch = stream.next()) != null)
            if (ch == "}" && stream.next() == "}") break;
          return "mustache";
        }
        while (stream.next() != null && !stream.match("{{", false)) {
        }
        return null;
      }
    };
    return CodeMirror.overlayParser(CodeMirror.getMode(config, parserConfig.backdrop || "text/html"), mustacheOverlay);
  });
  var editor = CodeMirror.fromTextArea(document.getElementById("code"), {mode:"mustache"});
</script>

<p>Demonstration of a mode that parses HTML, highlighting
  the <a href="http://mustache.github.com/">Mustache</a> templating
  directives inside of it by using the code
  in <a href="../lib/overlay.js"><code>overlay.js</code></a>. View
  source to see the 15 lines of code needed to accomplish this.</p>

</body>
</html>
